Invention Grant
- Patent Title: In-situ NFT pre-treatment to accumulate optically transparent material on NFT to improve reliability
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Application No.: US17172371Application Date: 2021-02-10
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Publication No.: US11244703B2Publication Date: 2022-02-08
- Inventor: Sukumar Rajauria , Yuichi Aoki , Yukio Kato , Kosuke Nagase , Kiyoshi Hashimoto , Qing Dai
- Applicant: Western Digital Technologies, Inc.
- Applicant Address: US CA San Jose
- Assignee: Western Digital Technologies, Inc.
- Current Assignee: Western Digital Technologies, Inc.
- Current Assignee Address: US CA San Jose
- Agency: Patterson & Sheridan, LLP
- Agent Steven H. Versteeg
- Main IPC: G11B5/31
- IPC: G11B5/31 ; G11B5/012 ; G11B5/73 ; G11B5/48 ; G11B5/00

Abstract:
The present disclosure relates to pretreating a magnetic recording head to increase the lifetime of the magnetic media drive. A transparent smear is purposefully formed on the magnetic recording head to ensure the magnetic recording head does not overheat and lead to a short drive lifetime. The transparent smear is formed from material found in the magnetic media. The transparent smear is formed by pretreating the magnetic recording head with the transparent material from the magnetic media. The pretreating occurs without writing any data to the magnetic media. Once the transparent smear is in place, writing may occur. The magnetic recording head can be retreated at a later time should the transparent smear degrade. Furthermore, if an optically absorbing smear develop, it can be removed and a new transparent smear may be formed.
Public/Granted literature
- US20210272595A1 In-Situ NFT Pre-Treatment To Accumulate Optically Transparent Material on NFT To Improve Reliability Public/Granted day:2021-09-02
Information query
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